"She couldn't live in our house because we were filming and it drove her insane," Osbourne said, adding that her then-teenage daughter "didn't want to grow up on camera. She hated the idea."
The landmark reality show revolved around the totally wild lives of heavy metal singer Ozzy Osbourne, his wife and two of the couple's kids, Kelly Osbourne and Jack Osbourne, who welcomed the limelight.
"I regret every day that she did [move out]," Osbourne said. "She was happy, but it broke my heart when she moved."
Osbourne shared her heartache while the co-hosts were discussing Jada Pinkett Smith's similar situation with son Jaden on the most recent episode on her Facebook show, "Red Table Talk."
"At 15 years old, Jaden -- and I remember this day specifically, it's probably one of the most heartbreaking moments of my life -- you got to a point where you told me straight up, mom, I have to leave here to live my life," she explained. "And I remember thinking to myself, as devastated as I was, I was like, 'He's right. The time is now, he's 15, it's time for him to leave the house.'"
"I told Will when Jaden was smaller, I said we'd be lucky to keep him in the house until he's 16. Because he was so mature. He was making films, he could really manage his own life," Jada continued. "Being in this lifestyle, in this world, is a bubble and he wanted out and I understood that."